Upcoiler for coiling a plurality of strips

ABSTRACT

A reel drum is rotatable in a predetermined direction to form thereon a plurality of juxtaposed coils from respective strips, pressure roll means are engageable with said coils to force the final convolutions of each coil against the latter. A plurality of dispensers are provided, each of which is engageable with one of said coils behind said pressure roll means when said drum rotates in said direction and adapted to dispense adhesive tape so as to tie said coil as it receives the trailing end portion of said strip.

[ Mar. 11, 1975 United States Patent [191 Rodach et al.

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m nm N J 6 .1n n G r c e U B MB 39 4 3 55 677 99 999 l l l l ll 9 2456 16270036 6 9 0 J "$740077 57 273 t t v 222333 UPCOILER FOR COILING APLURALITY 0F STRIPS [76] Inventors: Alexander Rodach, Pforzheim; Hans[73] Assignee: Frau Irma Ungerer,Pforzheim,

Primary Examiner-Travis S. McGehee Assistant Examiner-John Sipos WestGermany Filed: Mar. 11, 1975 Appl. No.: 343,789

Foreign Application Priority Data Nov. 18, 1972Germany.................,..

with said 00115 to force the final convolutions of each coil against thelatter. A plurality of dispensers are provided, each of which isengageable with one of said coils behind said pressure roll means whensaid drum rotates in said direction and adapted to dispense adhesivetape so as to tie said coil as it receives the trailing o. H t S m a S fo n 0 U r o P d n e 920 ,7 7 92 4 m 2oo 4 1 55 W66 5 009 1- 11 7 a a v 1ow H M 3 a a2 5 664 9 42 u in 6 1 4 n 5 3 "m 5 3... u U U "3 m NW N mh mWW m mum ,m WW I C lo d S Ld a 1. U. I F 4 4 N 5 6 Claims, 3 DrawingFigures [56] References Cited UNITED STATES PATENTS 2,503 470 4/1950Charles............................. 2,572,985 [0/195]Camras.............................

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UPCOILER FOR'COILING A PLURALITY OF STRIPS This invention relates to anupcoiler for slit strips, which upcoiler comprises a pressure rollforforcing the final convolutions. of each coilagainstthe latter.

Longitudinal slitting plants are usedin the processing of sheet metal toslit wide strip. In such plants, the coils formed by the slit-strips onthe upcoiler must be provisionally tied by hand before they can be movedfrom the expandingdrum of the upcoiler. For this tying operation.,.theplant must be shut down for some time so that its operating time isreduced. For this reason, the slit strip coils are sometimes tied onlyafter they have been removed and when they lie on the coil car or aresuspended from the spider arm. A removal of slit strip coils which havenot been tied from the reel may result in considerable difficultiesbecause the outermost convolutions may become loose so that the coilscannot be tied thereafter since the outer and inner convolutions of thecoil are no longer in firm engagement with each other.

It is an object of the invention to enable a temporary tying of eachslit strip coil on the upcoiler virtually without a shutdown of therunning plant. To accomplish this object, the upcoiler for slit stripaccording to the invention, which upcoiler comprises a pressure roll forforcing the final convolutions of each coil against the latter, ischaracterized in that the upcoiler is succeeded by dispensers, which areengageable with each slit strip coil and dispense adhesive tapes for apreliminary tying of the coils during the final phase of the upcoilingoperation. The pressure roll is mounted on a secondary pivoted lever,which is pivoted to the end of a primary pivoted lever, which carries asucceeding second pressure roll. The adhesive tape dispensers aredisposed between said two pressure rolls and are laterally adjustable.An actuator is pivoted to the secondary pivoted lever and operable tomove the latter between positions in which the pressure rolls aredisengaged from and engaged with the coil, respectively.

Specifically, a spring-loaded pin capable of a limited displacement ispivoted to the secondary pivoted lever on the side where the secondpressure roll is disposed and holds the second pressure roll inengagement with the coil when the same is engaged by the first pressureroll. Each dispenser is mounted on a pivoted lever,

which is pivoted before the first pressure roll and extends over thesame and is movable to its engaging position by an actuator.

Further details of an upcoiler according to the invention are shown inthe drawings and will be described hereinafter. In the drawings,

FIG. 1 is a fragmentary side elevation showing an upcoiler with thepressure rolls and dispensers disengaged.

FIG. 2 is a fragmentary side elevation showing the upcoiler according toFIG. 1 with the pressure rolls engaged whereas the dispensers aredisengaged.

FIG. 3 is a side elevation showing the upcoiler of FIGS. 1 and 2 withthe pressure rolls and dispensers engaged.

As is apparent from FIG. 1 of the drawings, the upcoiler 1 comprises areel drum 2, which carries a coil 3 receiving a strip 4. A carrying arm5 has a primary pivoted lever 6 pivoted thereto. The lever 6 ispivotally movable in the direction A by an actuator 7. A secondarypivoted lever 9 is pivoted at 8 to the end of the primary pivoted lever6. A first pressure roll 10 and a succeeding second pressure roll 11 aremounted on the secondary pivoted lever 9. When the primary pivoted leverhas been moved to cause the first pressure roll 10 to engage the coil,as is apparent from FIG. 2, the secondary pivoted lever 9 is also heldin engaging position by a spring-loaded pin 12, which is pivoted to thesecondary pivoted lever 9 adjacent to the secondary pressure roll 11.The pin 12 is capable ofa limited displacement.

Each of the coils 3u-x formed by the incoming slit strips 4a-.\' hasassociated with it a dispenser 13 for dispensing adhesive tape from aroll. 14. Each of these dispensers is mounted at the end of anassociated pivoted lever 15, which is pivoted at 16 before the firstpressure roll 10 and extends over the latter and by an actuator 17 ismovable in direction B to its engaging position, shown in FIG. 3.

Each dispenser 13 is slidable on a shaft 16 to register with one of thecoils 3a-x. The adhesive tape 18 is withdrawn from the roll 14 and withits free end moves between a feed roll 19 and a tape pressure roll 20 sothat the tape is adhered to the trailing end portion of the respectivestrip 4 when the dispenser is engaged with the coil. When the dispenser13 is swung off the coil, the adhesive tape 18 moves over a knife 21 andis severed thereby so that the tape is then available for being adheredto the next trailing end of a slit strip 4a-.\'. As soon as suchtrailing end of a slit strip 4a-x arrives, the preceding sensor 22operates to move the dispenser 13 provided with the adhesive tape 18into engagement with the coil. This is apparent from FIGS. 2 and 3.

What is claimed is:

l. A winding device for coiling a strap comprising a rotatable drum forreceiving said strap, a first pressure roller engageable with said strapto force the final convolution of coiled strap against the coil on thedrum, a dispenser of adhesive tape engageable with said strap anddisposed behind said first pressure roller to dispense adhesive tapeonto the coiled strap, a second pressure roller engageable with saidstrap and disposed behind said dispenser for applying pressure to thecoiled strap, a primary pivoted lever disposed in relative position tosaid drum and movable to positions toward and away from said drum, anactuating cylinder for moving said primary pivoted lever, a secondarypivoted lever connected pivotally to the free end of said primarypivoted lever and adapted to carry said first pressure roller and saidsecond pressure roller.

2. A winding device as claimed in claim 1, comprising an associatedpivoted lever connected to the free end of said secondary pivoted leverand adapted to carry said dispenser, and an actuating member actingbetween said secondary pivoted member and said associated pivoted leverfor moving said dispenser into and out of position with respect to thecoil of the drum.

3. A winding device as claimed in claim 1, comprising spring-loaded boltmeans disposed between an interm ediate portion of said primary pivotedlever and the free end of the secondary lever for maintaining a pressureon the pressure rollers when in engagement with the coil.

4. A winding device as claimed in claim 2, wherein the dispenser isadapted to hold a roll of tape, said dispenser comprising a tapepressure roller and a feed roller to allow application of tape to thecoil when the dispenser is in engagement with said coil.

5. A winding device as claimed in claim 4, wherein said dispensercomprising a knife disposed on said seca sensor element disposed aheadof said first pressure roller for activating said dispenser actuatingmember in response to the position of an end of a length of strap beingcoiled.

1. A winding device for coiling a strap comprising a rotatable drum forreceiving said strap, a first pressure roller engageable with said strapto force the final convolution of coiled strap against the coil on thedrum, a dispenser of adhesive tape engageable with said strap anddisposed behind said first pressure roller to dispense adhesive tapeonto the coiled strap, a second pressure roller engageable with saidstrap and disposed behind said dispenser for applying pressure to thecoiled strap, a primary pivoted lever disposed in relative position tosaid drum and movable to positions toward and away from said drum, anactuating cylinder for moving said primary pivoted lever, a secondarypivoted lever connected pivotally to the free end of said primarypivoted lever and adapted to carry said first pressure roller and saidsecond pressure roller.
 1. A winding device for coiling a strapcomprising a rotatable drum for receiving said strap, a first pressureroller engageable with said strap to force the final convolution ofcoiled strap against the coil on the drum, a dispenser of adhesive tapeengageable with said strap and disposed behind said first pressureroller to dispense adhesive tape onto the coiled strap, a secondpressure roller engageable with said strap and disposed behind saiddispenser for applying pressure to the coiled strap, a primary pivotedlever disposed in relative position to said drum and movable topositions toward and away from said drum, an actuating cylinder formoving said primary pivoted lever, a secondary pivoted lever connectedpivotally to the free end of said primary pivoted lever and adapted tocarry said first pressure roller and said second pressure roller.
 2. Awinding device as claimed in claim 1, comprising an associated pivotedlever connected to the free end of said secondary pivoted lever andadapted to carry said dispenser, and an actuating member acting betweensaid secondary pivoted member and said associated pivoted lever formoving said dispenser into and out of position with respect to the coilof the drum.
 3. A winding device as claimed in claim 1, comprisingspring-loaded bolt means disposed between an intermediate portion ofsaid primary pivoted lever and the free end of the secondary lever formaintaining a pressure on the pressure rollers when in engagement withthe coil.
 4. A winding device as claimed in claim 2, wherein thedispenser is adapted to hold a rOll of tape, said dispenser comprising atape pressure roller and a feed roller to allow application of tape tothe coil when the dispenser is in engagement with said coil.
 5. Awinding device as claimed in claim 4, wherein said dispenser comprisinga knife disposed on said secondary pivoted member and adapted to severthe tape when the dispenser is moved out of engagement with said coil.